﻿function Confirm() {
    var hiden = document.getElementById('HiddenField1');
   
    var traLoi = confirm('Are you sure ?');
    if (traLoi) {
        hiden.value = 'yes';
       
    }
    else {
        hiden.value = 'no'; texr.value = 'No';
    }

    return hiden.value;

}
         